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The superfine graphite powder used in lubricating greaser is the graphite powder which is specially used for production of lubricating grease, this superfine graphite powder is a very good lubrication graphite powder, its particle size is micron, therefore, the superfine graphite powder used in lubricating greaser has the advantages of good lubrication,good performance of high temperature resistance and the corrosion resistance, the superfine graphite powder lubrication grease have a very good application in lubricating grease production areas . The use of the superfine graphite powder in lubricating grease can improve the service life of lubricating grease effectively. it uses natural graphite flake as raw materials and made by special processing, the has inherited the superior lubricating properties of the natural…
Electrode material is one of the key materials for all vanadium redox flow battery. Graphite felt material due to the large real surface area, good stability and occupy the leading position. But the graphite felt material is poor in hydrophilicity, and the electrochemical activity is not good enough. This paper on the graphite felt electrode respectively chromic acid oxidation method, mixed acid electrochemical oxidation method and hydrothermal ammoniation method for processing vanadium redox flow battery to improve its activity. The chromic acid oxidation, hydrophilicity and electrochemical activity of graphite felt electrode significantly enhanced, The increase of oxygen functional groups on the carbon fiber and the surface gully increased, the former increased the carbon fiber surface to participate in the VO2+/VO2+…
Vanadium battery as the current strong momentum of development of green energy storage battery, has broad prospects for development in large-scale energy storage. However, in the process of vanadium battery research, the research of electrode materials is one of the key constraints. The electrode material must have the characteristics of stability, performance in strong acid medium and low resistivity, good conductivity, high mechanical strength, high electrochemical activity, and electrode materials at present is not up to the above requirements, can not meet the actual needs of the long-term work of vanadium battery. Carbon materials due to its good conductivity and corrosion resistance, many researchers of various carbon materials by charge discharge experiments in vanadium electrolyte, found that graphite rods, graphite…
